Raypak P-R185B To P-R405B, C-R185B To P-R405B, P-R185BL To P-R405BL, C-R185BL To C-R405BL, RP2100

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Extension Pieces (2)

Auger with Carbide Tip

Wire Brush

Fig. # 8154.0

 

 

 

 

TUBECLEANINGPROCEDURE

Establish a regular inspection schedule, frequency de- pending on local water condition and severity of service. Do not let the tubes clog up solidly. Clean out deposits over 1/16" in thickness.

The heater may be cleaned from the return header side, without breaking pipe connections. It is preferable, however, to remove both headers for better visibility through the tubes and to be sure the ground-up lime dust does not get into the system.

Note that you do not remove the top panel or the heater exchanger, generally.

After reaming, mount the wire brush in place of the auger and clean out debris remaining in the tubes.

Another method is to remove the heat exchanger, ream tubes and immerse heat exchanger in non-inhibited de- scale solvent for severe scale buildup.

DESOOTINGPROCEDURE

CAUTION: SOOT IS COMBUSTIBLE. EXERCISE EXTREME CARE:

Soot will clog areas between fins and cause eventual tube failure. Any sign of soot at the base of the burners or around the outer jacket indicates a need for cleaning.

1.Remove top and flue collector from cabinet.

2.Remove "V" baffles from heat exchanger.

3.Remove burner drawer. (See burner tray removal).

4.Remove heat exchanger from the heater and wash with a garden hose, making sure soot is removed from spaces between fins.

5.Reverse above procedure to reinstall.

NOTE: In extreme cases it may be necessary to do steam cleaning at the local car wash. DO NOT WIRE

BRUSH.

COMBUSTION CHAMBER REMOVAL

To remove combustion chamber, you must first have removed the heat exchanger. Unbolt metal combustion chamberretainerfromtopandremovecombustioncham- ber panels individually.

IMMERSION WELL REPLACEMENT

(Millivolt and ASME)

1.Shut water off to heater and drain heat exchanger.

2.Remove access panel on water connection side of heater.

3.Remove old immersion well with bushing and sleeve.

4.Install in header.

NOTE: Installation in plastic should be hand tight plus 1/2 turn.

Well Assembly

Fig. #2010

UNITHERM GOVERNOR (U.G.) REPLACEMENT

1.Shut water, gas and electricity off, close valves and relieve pressure.

2.Drain heat exchanger.

3.Remove retainer plug located next to the outlet pipe connection.

4.Remove old U.G. from retainer plug. It is snapped in place. Snap in new U.G.

5.Reinstall retainer plug, taking care to lubricate gas- ket with a non-petroleum based grease such as AquaLube.

Retainer Plug

U.G.

Spring

Gasket

Fig. #2011

To test the operation of the Unitherm Governor, place in hot water (over 100°F) and watch for movement against spring. If there is no movement, replace unit.

Fig. #RP 8155.0

REFRACTORY PANELS-TOP VIEW

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Contents Installation and Operating Instructions What to do if YOU Smell GASPage Contents START-UP Procedures For Your Safety Read Before OperatingBefore START-UP Burners Water Millivolt System Lighting InstructionsTo Turn OFF GAS to Appliance Electronic Ignitions Systems What to do if YOU Smell GASOperating Instructions Maintenance and Care Procedures Water Pressure SwitchAfter START-UP Visual InspectionPool & SPA Water Chemistry Automatic Chlorinators Chemical FeedersCold Weather Operation Winterizing the Pool & SPA Heater General Specifications Receiving EquipmentStandardunit Asme Unit Installation Instructions Installations only OutdoorheatersIndoor Heater Outdoor KIT IncludesIndoor KIT Includes Installing the Clips Indoor & Outdoor Kits Securing the TOP Panel Cover Indoor KIT onlySecuring the TOP Panel Cover Outdoor KIT only Installing the TOP Cover Outdoor KIT only Specifications and Dimensions Combustion AIR Indoor Units OnlyVent Piping GAS Supply ConnectionsGAS Pressure Adjustment Locations GAS Pressure RegulatorPipe Sizing for GAS Connections Plumbing for Water Connections Flow RatesConnections Asme Models Unitherm Governor OperationExternal Auxiliary Bypass Valve Where Required Auxiliary Bypass Valve AdjustmentHeat Exchanger Pressure Drop Tables For Asme Models call your factory representative Electrical Wiring Millivolt SystemElectronic Transformer Wiring 120V Wiring 240V WiringIndependently Wiring Diagram Millivolt Units Mechanical Thermostat Wiring Diagram IID Units atmospheric Wiring Diagram IID Units Low NOx General Location of Controlscontrols and Adjustments Control Panel RemovalMillivolt Controls Digital Thermostat Controls Thermostat Control OperationFahrenheit vs Centigrade Diagnostics Reading a FaultDisplay Definition Remote Control Installation and Operation Activating the RemoteRemote Operation Remote Control Wiring Wire Remote Control On-OffPressure Switch Flame ROLL-OUT Safety SwitchPilot Safety Millivolt Pilot Safety ElectronicPilot Removal and Cleaning Burner Drawer RemovalGAS Valve Removal Main Burner and Orifice RemovalTubecleaningprocedure DesootingprocedureImmersion Well Replacement Unitherm Governor U.G. ReplacementSTART-UP Procedures BurneradjustmentFlame ROLL-OUT Safety Switch OperationPilot Removal Combustion FAN RemovalTrouble Shooting Guide MechanicalforqualifiedservicepersonnelonlyElectrical Standing Pilot Millivolt Raypak Pool or SPA Heater Electrical Check with MV GAS ValveElectrical Electronic Ignition IID Troubleshooting For qualified Technicians onlyDigital Control Logic Flow Chart Replacement Parts List RAYPAK, INCEastman Avenue Oxnard, CA For Canada Page Pilot Assemblies Page Page Page Page Page

P-R185B To P-R405B, C-R185B To P-R405B, P-R185BL To P-R405BL, C-R185BL To C-R405BL, RP2100 specifications

Raypak offers a comprehensive line of boilers and water heaters, notably the P-R185B to P-R405B and C-R185B to P-R405B series, along with the RP2100 model. These products are engineered for efficiency, reliability, and performance in both residential and commercial applications.

The P-R185B to P-R405B series features a range of input capacities from 185,000 to 405,000 BTU/h, making them suitable for various heating requirements. The P-R series is equipped with Raypak's patented Cupro-Nickel heat exchanger, which offers superior corrosion resistance and extended life in challenging water conditions. These units also utilize a sealed combustion system, allowing for efficient operation and reduced energy consumption by drawing air from outside the building.

The C-R185B to P-R405B boilers are specifically designed for commercial applications where reliability is critical. They incorporate similar features to the standard P-R series and are built to handle higher heating demands, making them ideal for larger facilities. The C-R series models are recognized for their durable construction and advanced control systems, offering precise temperature management and enhanced performance.

In addition to these series, the P-R185BL to P-R405BL and C-R185BL to C-R405BL models feature a low-NOx design to comply with stringent environmental regulations. This means they produce lower nitrogen oxides, making them an environmentally friendly option without sacrificing performance.

The RP2100 is another standout model, known for its robust design and cutting-edge technology. It boasts a high efficiency rating and is equipped with an intuitive digital control system, allowing users to monitor and adjust settings with ease. The RP2100 also features a modulating burner system, which adjusts the flame based on the heating demand, optimizing fuel usage and minimizing operational costs.

All Raypak models are designed with safety in mind, incorporating multiple safety features like thermal shutdowns and pressure relief valves. Their compact dimensions make installation straightforward, and the low maintenance requirements ensure longevity and consistent performance.

In summary, Raypak's P-R185B to P-R405B, C-R185B to P-R405B, P-R185BL to P-R405BL, and RP2100 series represent a commitment to quality and innovation in heating solutions, providing efficient and reliable options for both residential and commercial applications.
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